A new cultivar of walnut (Juglans sinensis) was developed through selection from Korea Forest Research Institute. The goals of this research were to evaluate the yielding of walnut and their fruit characteristics of walnut selected from different regions in Korean Wild. Different varieties of walnut grown in Korea, were investigated in what concerns fruit weights, fruit length and their yielding. The walnut belongs to the family Juglandaceae. It is one of the most important nut crops grown in temperate regions. Walnuts, the seeds of J. sinensis are a highly nutritious food. They are also used as a traditional remedy for treating cough, stomach ache and cancer in Asia. The present investigations were undertaken during 2000-2009 in five walnut growing areas. In the present study a wide range of variation was observed in walnut characters from different locations. From these varieties, we have been regularly investigated the fruiting characteristics, which are the average of Fruit Length (FL) and Width (FW), and Weight of Fruit (WF) and Individual Yields (IY), during 10 years to select good quality walnut trees.

The effect of storage temperature and the storage period of hardy kiwifruits on the fruit firmness, soluble solids and fruit weight were studied in this work. The investigation was carried out on the Sae-Han cultivar of Actinidia arguta. It has an edible smooth skin and contains high amounts of sugar and vitamin C (ascorbic acid). In this research, the measurement of fruit firmness, soluble solids, and fruit weight were carried out at various temperatures (5, 10, 15, and 20℃) during 14 days. Fruit firmness rapidly decreased and soluble solids content increased at 15 and 20℃. We also investigated the correlation between fruit firmness and soluble solids content. There was a strong correlation between fruit firmness and soluble solids content. That means that fruit firmness affect the soluble solids content of hardy kiwifruit.